Aditya Kashyap (Shahid Kapoor) is a wealthy industrialist struggling with his business and personal life. With his company in a bad condition and his girlfriend marrying another man, he becomes depressed and wanders aimlessly until he boards a train, wanting to get away from his life. Inside, he meets another passenger, Geet Dhillon (Kareena Kapoor), a bubbly, talkative Sikh girl. Irritated by her talkativeness, he lashes out at her, but she thinks nothing of it, understanding that he is upset.